Pentel Icy Automatic Pencil, 0.50 mm, Transparent Smoke Barrel

Cool pencil with an ergonomic barrel and latex-free grip that will let you write comfortably for hours. Top click easily advances lead and its transparent barrel will allow you to monitor lead supply so you never get caught short-handed and because it's refillable you'll always be able to replenish it. The large, refillable eraser will also come handy whenever pesky mistakes and strays get in the way. The metal clip allows you to easily attach it to anything.